The cabinet under a kitchen sink with its door open, a braided supply line running from a small shut-off valve toward the side of a dishwasher.

Miele dishwasher
showing F18

F18 means the water intake valve has failed.

(844) 430-4286

Mon–Sat, 8am–8pm

  • Water supply
  • Fill and water valve repair
  • Source: Miele

Book a visit

Three short steps, about a minute.

or call (844) 430-4286

Before you book,
in this order.

Each step comes from Miele's own guidance for F18 on its dishwashers. Follow it to the end: the last card says whether this is a visit.

01

Switch the dishwasher off and do not keep restarting it.

02

Book a visit; Miele sends owners straight to a repair appointment for F18.

Still there?

It usually turns into fill and water valve repair. Book with the code and the model number.

What not to do

F18 is not a blocked supply; the restricted-inlet codes are F12, F13 and F15.

What you may
notice with it.

The dishwasher problems F18 tends to arrive with. Answer these at the dishwasher before anyone is booked.

All problems

Where F18 usually leads

Fill and water valve repair.

Water inlet valve or float switch · low.

In Miele's own words

Water intake valve faulty.
Miele USA support: F18 on a dishwasher (Wayback Machine copy of mieleusa.com, June 2026; the live page refuses automated reads)

Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. Miele dishwashers with an F-code display; the US page does not tie F18 to a series.

Miele F18 dishwasher repair,
where we come out.

The same visit in every metro below: the code, the model number, and a diagnosis before any part is ordered.

All service areas
A family unloading clean plates from an open dishwasher together in a bright contemporary kitchen, a child handing a plate to a parent
For the heart of your home.

Questions
about F18.

Can I clear F18 myself?
Switch the dishwasher off and do not keep restarting it. If it comes back, it needs a visit.
Will restarting my Miele a few times get past F18?
Repeated restarts will not help, because F18 reports that the valve letting water into the machine has itself failed. Miele places it with the technical problems that only a repair appointment can settle, so switch the dishwasher off and leave it that way.
Can I clear F18 on a Miele the way I would clear a blocked inlet?
No, the owner-level inlet checks belong to F12, F13 and F15, where water is held back on its way in. With F18 the supply may be fine and the valve still unable to open, which is why there is no cleaning step for it.

Back to your everyday

Still showing F18?

Book with the characters exactly as shown, the full model number, and whether any water is on the floor — for a code, that is where the diagnosis begins.

(844) 430-4286 Schedule a repair